<!--
@BLINK-ALLOW:hierarchicalLevel*
-->
<html>
<body>
  <h2>Heading 2, no tabIndex</h2>
  <h1 tabIndex="-1">Heading 1, tabIndex of negative 1</h1>
  <h3 tabIndex="0">Heading 3, tabIndex of 0</h3>
  <h4 tabIndex="1">Heading 4, tabIndex of 1</h4>
</body>
</html>
